Home / 7,519.87-11,279.39-2,589.40

Finding the Fourth Proportional to 7,519.87, 11,279.39 and 2,589.40

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Solution

The fourth proportional to 7,519.87, 11,279.39 and 2,589.40 is: 3,883.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.87 : 11,279.39 = 2,589.40 : x
  2. Step 2: Convert to fraction form
    7,519.87/11,279.39 = 2,589.40/x
  3. Step 3: Cross multiply
    7,519.87x = 11,279.39 × 2,589.40
  4. Step 4: Simplify right side
    7,519.87x = 29,206,852.47
  5. Step 5: Solve for x
    x = 29,206,852.47/7,519.87
  6. Step 6: Final answer
    x = 3,883.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.